The stationarity of consumption-income ratios: evidence from South American countries

This paper analyzes the order of integration of the consumption-income ratio in 10 South American countries. To do this, the individual ADF test, its panel versions and theMinimumLMunit root test with structural break(s) were employed. While the former tests found more favorable evidence of an integ...

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Bibliographic Details
Main Authors: Fábio Augusto Reis Gomes, Douglas de Souza Franchini
Format: Article
Language:Portuguese
Published: Universidade de São Paulo 2009-12-01
Series:Economia Aplicada
Subjects:
Online Access:http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-80502009000400006
Description
Summary:This paper analyzes the order of integration of the consumption-income ratio in 10 South American countries. To do this, the individual ADF test, its panel versions and theMinimumLMunit root test with structural break(s) were employed. While the former tests found more favorable evidence of an integrated process, after controlling for structural breaks only Uruguay seems to be integrated. Thus, in general, the consumption-income ratio was diagnosed as a stationary process, as suggested by the relative income hypothesis, the habit persistence model, the permanent income hypothesis and the life cycle hypothesis.<br>Este artigo analisa a ordem de integração da razão consumo-renda em 10 países da América do Sul. Para tanto, utilizamos o teste ADF e sua versão painel, além de um teste LM de raiz unitária com quebra estrutural(s). Enquanto os primeiros testes encontraram evidências mais favoráveis a processos integrados, após o controle de quebras estruturais apenas o processo do Uruguai parece ser integrado. Assim, em geral, a razão consumo-renda foi diagnosticada como um processo estacionário, como sugerido pelo modelo de hábito e pelas hipóteses de renda relativa, renda permanente e ciclo de vida.
ISSN:1413-8050
1980-5330